To add a new SysObjectID into NCM please follow the steps given below:
Click Add
Provide the device ip for which you want to add sysobject id
Provide other required details and click Next
If the SysObjectID is already present in NCM, you will see the associated device template on next page
If SysObjectID is not present in NCM, it will show you the SysObjectID on next page and you can assign it to appropriate device template
If you already know the SysObjectID for your device, you can skip the first page and add it directly on the next page and assign it to a device template
Newly added SysObjectID can be seen under Custom tab of SysObjectID Finder page